TPA6205A1 is a 1.25W mono fully differential audio power amplifier with 1.8-V input logic thresholds from Texas Instruments. The device is designed for use in wireless handsets, PDAs, and other mobile devices. It is compatible with low power (1.8V logic) I/O control signals, has a shutdown pin with 1.8V compatible threshold thresholds, and consumes less than 1.7mA of supply current. The TPA6205A1 is available in the space-saving 2mm x 2mm MicroStar Junior™ BGA package or the 3mm x 3mm QFN (DRB) package.
The TPA6205A1 is a 1.25‑W mono fully‑differential audio power amplifier designed for wireless handsets, PDAs and other mobile devices. It operates from 2.5 V to 5.5 V, draws only 1.7 mA typical supply current and features a shutdown pin with a 1.8‑V compatible threshold.
The device is offered in three compact packages (2 mm×2 mm QFN, 3 mm×3 mm QFN and 8‑pin MSOP) and includes optional bypass capacitors to improve PSRR. Typical applications include audio output stages for battery‑powered equipment where low power consumption and high common‑mode rejection are required.
| Supply voltage range | 0.3 V to 6 V |
|---|---|
| Typical supply current | 1.7 mA |
| Shutdown current | < 10 µA |
| Maximum output power (8 Ω, 5 V) | 1.25 W |
| THD+N (1 kHz) | 1 % typical |
| CMRR | ≤ –60 dB |
The typical supply current is 1.7 mA.
It can deliver up to 1.25 W into an 8 Ω load when powered from 5 V.
The shutdown current is less than 10 µA.
The THD+N is typically 1 % at 1 kHz.